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x^2*((12*x^3-(32*x^2))/4) = 0
x^2*((12*x^3-32*x^2)/4) = 0
(x^2*(12*x^3-32*x^2))/4 = 0
12*x^3-32*x^2 = 0
4*x^2*(3*x-8) = 0
3*x-8 = 0 // + 8
3*x = 8 // : 3
x = 8/3
4*x^2*(x-8/3) = 0
(4*x^2*x^2*(x-8/3))/4 = 0
( 4*x^2 )
4*x^2 = 0 // : 4
x^2 = 0
x = 0
( x-8/3 )
x-8/3 = 0 // + 8/3
x = 8/3
( x^2 )
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in { 0, 8/3, 0 }
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